import book.BookList;
import user.AdminUser;
import user.NormalUser;
import user.User;

import java.util.Scanner;

public class Main {
    //利用向上转型来确定权限
    public static User login() {
        System.out.println("请输入姓名：");
        Scanner scanner = new Scanner(System.in);
        String userName = scanner.nextLine();
        System.out.println("请选择你的权限：1.管理员   0.用户");
        int choice = scanner.nextInt();
        if (choice == 1) {
            return new AdminUser(userName);
        } else {
            return new NormalUser(userName);

        }
    }

    public static void main(String[] args) {
        //准备数据
        BookList bookList = new BookList();
        //登入
        User user=login();
        while(true) {
            int choice = user.menu();
            user.doOperation(choice, bookList);
        }

    }
}
